This means that there may be an issue with your Microsoft account or your Xbox profile.

Solution

Before trying the solution presented here, check for service alerts at Xbox Live status, or see if there's a service alert at the top of this page. If there are any current alerts, wait a while and then try again.

Note If a specific service or app is down, you can ask Microsoft to notify you when it's working again. Under the app or service name, click Notify me when this service or app is up and running.

Note If your account is an Xbox child account, you must enter the parent's Microsoft account information to download the profile.

If you use external storage on your console, select the storage device to which you want to save the profile. If you don't use external storage, your profile will immediately begin downloading.

You should now be able to sign in using your Xbox profile on the console.

Important If you downloaded your profile to another console and you chose Remember Password, you have the option to remotely remove the password so that your profile can't be accessed by someone else on the other console. For more information, see Manage your sign-in preferences on your Xbox 360 console.